Answer:
The correct option is c) 180⸰
The wire is at an angle of 180° to the magnetic field.
Force is felt by a current-carrying wire in a magnetic field. Using the formula
F = BILsinθ ———–(1)
where
L = length of the wire
I = The current
θ= The angle between the current direction and the magnetic field
We know that sin 180° is 0.
Substitute the value of sin 180° in the equation (1) we get,
F = BIL × 0 = 0
Therefore, the force exerted on a current-carrying wire that is placed in a magnetic field is zero.